So a customer brought their 92 non turbo 940 into my shop the other day. Gave me and my parnter two different stories on two different days so we honestly dont know what the cars story is. One tim they said theyv had it for a yhear and it recently ran out of gas and wont start the other was they bought it out of someones yard not running.

When we got it it was evident the pump wasnt primming. We replaced the fuel pump/strainer, inline fuel filter, oil cahnge. plugs and wires, and lastly radio noise surpressor relay and it stil wont start. Its getting spark and fuel but all it does is crank and crank without any luck. WE sprayed starting fluid in it and got it to fire up for half a secound. Is there somthing else we should be looking for ?? And also every auto parts store told us there were two fuel pumps but all we found was the intake one so thats the only one we replaced. Weve followed the lines up and down and theres definatly no other pump

 

There's a pump in the tank that's accessed through a portal in the cargo area. The second (main) pump is under the car, just ahead of the left-rear wheel well area.

Also check the 25-amp fuse: engine bay, driver's-side, mounted in a plastic fuse clip and clipped to a metal rail along inner fender-well, behind battery.

 

you might have a regina system in that car, which only has 1 fuel pump that is located in the tank.... if you used the in-tank pump for an LH setup, you're not getting enough pressure to the engine(this is what had happened with my last 940- wrong pump installed, owner got disgusted and sold it to me for $400).

look under the car, at the fuel filter- if the filter is alone, it's a regina system... if there's a small hose joining the filter to a pump, you have the LH system.

 

You didn't mention if you had any codes. Also have you verified if the crank sensor is go? Seems funny if you have fuel and spark and it doesn't fire.

 

sounds like you're a 'shop', have you hooked up a fuel pressure gauge and verified the car is getting the proper fuel pressure when its being cranked? should be 42PSI +/- 2psi above manifold pressure. as NCvolvo940 says, a bosch type in-tank fuel pump won't work with a Regina system, the bosch pump is just a primer for the external bosch main pump. The regina system just uses its own special intank pump.

 

Have you peeked into the valve cover and determined if the cam belt is broken? Assuming the timing belt is intact, I'd be thinking crank sensor. Often just wiggling the wires can get it to start. Do you see many Volvos at your shop?

 

We checked the cam belt and it was fine. The injectors are getting power to both sides with no pulse. Also when we replaced the fuel pump every auto parts stores gave us a hard time saying there was two pumps but we knew there was only one. They were all convinced we needed two. We dont usually work on volvos we mostly do autobody and performance upgrades.

 

I work at a parts chain, and have run into this problem... try looking at a turbo listing, or check a year up or for a 740. I looked at the listings for a 93 940 a couple days ago and noticed all the listings showed the bosch, and had "except regina" in the notes... found the listing under a turbo 940...

 

Surely at this point there is no confusion as to which injection system you have, right? Regina has a square ignition coil, a MAP sensor but no AMM (MAF), solely a fuel filter under the LR passenger's feet (under the car)...no fuel pump. And...if you pull the passenger side kick panel forward of the door, you'll find an ecu clearly labeled Bendix Regina.
Assuming THAT's resolved, have you checked fuel pressure at the rail? You mention no injector pulse...checked the crank sensor? The crank sensor is notorious for no starts...just sayin'

 

Would you happen to know the exact year and model of the car you had to use to order the pump. Its definatly confirmed that it has the regina fuel system. The pump they gave us was shorter and although it pumps its such low pressure

 

what's funny is ,IIRC the turbo's only use the bosch/lh system, not the regina system... I found this using a 92 940 turbo....
Buy Airtex Electric In-Tank Fuel Pump E8250 at Advance Auto Parts____
whoever you get it from, make sure it states that it's a high pressure in-tank pump...


HTH,
Darin

 

ALL Regina cars were n/a cars...have no idea how looking up a 940T could possibly turn up a high pressure, high volume intank pump. All turbo cars use Bosch w/ a low pressure lift pump intank. E3210 is the correct pump in Master/AirTex. For what it's worth, you could use most any intank Walbro type 255lph pump. Since you guys work on cars, I know you have done a little MacGyver-ing from time to time.

 

a 92 940 B230F 'regina' uses a 3507736 fuel pump (this replaced 3531165) in the tank, only.

a B230F Bosch lh2.4 [1] uses a 3507436 in tank pump, and a 9142044 main fuel pump

a B230FT turbo (Bosch lh2.4) uses a 3517845 in tank pump, and a 9142045 main fuel pump

a B234F (16V, DOHC, lh2.4) uses a 3501928 or 3507436 in tank pump, and a 9142044 main pump.

confusing enough?



[1] according to my VADIS, there were only Regina 8V, Bosch 16V, and Bosch Turbo 940's in 1992. So this combination may not be applicable. YMMV.

 

Problem solved. Got a high pressure pump for a dofferejt model volvo as someone mentioned above and after a little persuasion it all works now. Thanks all

 

Sweet.

 

You said you have power on both sides of the injector. 12v on both sides of the injector means you have no ground. You should have power on one side ground on the other.

 

wojeepster: thats only true when the injector is being fired. when the ECU side is 'open', you'd read 12V on both sides. the ECU only runs it to ground to turn the injector on, which has a pretty narrow duty cycle unless you're driving WFO with a heavy load.

 

My turbo dial on the dashboard remains in the middle even if the engine is shut off compared to what was in operation originally a week ago - it oges to zero. Our weather now is running about 100deg F for the past 3 weeks. I also noticed that at times even if I press on the pedal it will speed up only up to 50mph. I wonder what is wrong. I have a 1991 940se turbo model. Thanks for the one who can help me on this problem. Cheers!
rosicler

 

on both my 740T and son's 940seT (and my 855T), the turbo gauge is dead center when the engine is off. its only to the left when there's a high vacuum, like when you take your foot off the pedal at speed, and to the right when you lean on it hard enough to develop positive boost. The 0 is in the middle, - pressure on the left, + pressure on the right. if your car is behaving as you say, I think the first thing I'd check would be the rubber in the intake path, as well as the various vacuum lines.

you really should start a new thread with a new problem, this is completely unrelated to the thread you're posting in.

 

would you have a picture of where that sensor is located ?